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In order to achieve tunable polarization rotation of the transmitted wave and controllable bandpass response simultaneously, a new graphene frequency selective surface (GFSS) is proposed for terahertz applications. The GFSS is built up by sandwiching a high-resistivity Si-substrate with a graphene patch array and a graphene sheet, both of which are electromagnetically biased. The configuration is...
In this paper, the free-standing graphene patch frequency selective surface is modelled by an equivalent tensorial surface conductivity. The rotation angle and total transmission amplitude are then predicted for normal incidence with different values of the biasing magnetic field. The tunable transmission can be obtained by changing the chemical potential of graphene and the biasing magnetic field,...
A free-standing magnetically biased graphene patch frequency selective surface (FSS) is modelled in this paper. Its transmission coefficients of co- and cross-polarizations can be obtained with an equivalent tensorial surface conductivity. Then, the rotation angle for normal incidence is explored with different values of biasing magnetic field B0. The maximum rotation angle provided by the magnetically...
In this paper, the transmission and reflection characteristics of a rectangular waveguide loaded with a graphene sheet is investigated theoretically, where the graphene is biased with a static magnetic field and shows gyrotropy. According to the nonreciprocal S-parameters of the composite structure, significant coupling and conversion are observed among different guided modes. In order to clearly...
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